Saw-filing device.



W. FARRAH.

SAW FILING DEVICE. AYPLIOATIOH 111.21) 11110.2, 1910.

1,011,178. Patented Dea 12,1911.

r I d 4 4 d 5 mm 1 3W WILLIAM raw, or cnrswar, MONTANA.

SAW-FILING DEVICE.

Specification of Letters Patent.

Patented Dec. 12, 1911.

Application filed December 2, 1910. Serial No. 595,190.

To all whom it may concern:

Be it known'that I, WILLIAM FARRAH, a citizen of the United States,residing at Gateway, county of Flathead, and State of Montana, haveinvented certain new and useful Improvements in Saw-Filing Devices, ofwhich the following is a specification. I

My invention relates to saw filing devices and particularly to acombination gage and file iding device.

T e ob'ect of my invention is to r-ovide a device or use in filin sawteeth after the same have been swage which 'shall guide the file andgage the same in order to give a uniform swage to the teeth.

A further object of my invention is to provide a device as mentionedwhich may be readily adjusted as desired to gage the preferred swage ofthe teeth.

A further object of my invention is to provide a device characterized asabove mentioned which shall be of simple construction and which may bereadily and easily operated.

Other objects will appear hereinafter.

M invention will be more readily understoo by reference to theaccompanying drawings forming a part of this specification and in which-Figure 1 is a perspective view ofa saw filing device embodying myinvention in its preferred form, Fig. '2 is a side elevation thereof andFig. 3 is a front elevation of the u per portion of the de ice.

Re erring now to the drawings, 1 indicates the frame which comprises alongitudinal bar 2 and a transverse cross bar 3, the latter being turnedforwardly at their ends forming feet or bearings 4 which rest againstthe side or face of the saw during the operation of side filing, Thelower end of the bar 2 is formed into a sleeve 5 through which isthreaded a set screw 6, the end 7 of which impinges against the face ofthe saw.

8 indicates a jam nut on the screw 6 for securing the same in adjustedposition. The function of the screw 6 will appear hereinafter.

The u per end of the bar 2 is bent forwardly orming a head 9, thelateral faces 1010 thereof are inclined inwardly and upwardly. Extendinglongitudinally along the upper edges of the head 9 are a pair of ribs 11the under faces 12 of which form shoulders which rest upon the points ofthe teeth A of the saw, thereby supporting the device as shown clearlyin Fig. 3. The forward end of the head 9 is cut away at the upperportion forming a lower projecting lip or lug 13 upon which the filerests and for limiting the downward movement of the file on the tooth.The forward face of the head, above the lug 13 is inclined slightlyforwardly as indicated at let in Fig. 2 and said face is laterallybeveled from the center forming the two bearing faces for the file whichare at a slight angle to each other.

I In using the device, after the saw is swaged, one of the shoulders 12is rested upon one of the teeth of the sawas indicated in Fig. 3 and thescrew 6 adjusted until the face 14 is at the desired angle to gage thedesired set of the teeth. The file is then rested upon the upper face ofthe lug ,13 and against the face 14 and the side of the tooth is fileduntil it coincides with said face. The device is then moved to the nexttooth but resetting of the device is not necessary. In order to give abetter grip for holding the device firmly in position the portion of thebar 2 above the bar 3 is flattened and rearwardly extended as indicatedat 16.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

In a device of the class described, a cruxiform frame comprising avertical member and a transverse member, the ends of said transversemember being bent forward forming bearings, a set screw threaded throughthe lower end of the vertical memher, a forwardly projecting head on theupper end of said vertical member and a lip projecting forwardly fromthe bottom of said head; substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM FARRAH.

Vitnes'ses:

CHARLES Lmvwooo, S. P. JOHNSTON.

